diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/AbstractUnicodeExtraField.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/AbstractUnicodeExtraField.java | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/AbstractUnicodeExtraField.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/AbstractUnicodeExtraField.java deleted file mode 100644 index 1014787d..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/AbstractUnicodeExtraField.java +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -package org.apache.tools.zip; - -import java.io.UnsupportedEncodingException; -import java.util.zip.CRC32; -import java.util.zip.ZipException; - -/** - * A common base class for Unicode extra information extra fields. - */ -public abstract class AbstractUnicodeExtraField implements ZipExtraField { - private long nameCRC32; - private byte[] unicodeName; - private byte[] data; - - protected AbstractUnicodeExtraField() { - } - - /** - * Assemble as unicode extension from the name/comment and - * encoding of the original zip entry. - * - * @param text The file name or comment. - * @param bytes The encoded of the filename or comment in the zip - * file. - * @param off The offset of the encoded filename or comment in - * <code>bytes</code>. - * @param len The length of the encoded filename or commentin - * <code>bytes</code>. - */ - protected AbstractUnicodeExtraField(final String text, final byte[] bytes, final int off, - final int len) { - final CRC32 crc32 = new CRC32(); - crc32.update(bytes, off, len); - nameCRC32 = crc32.getValue(); - - try { - unicodeName = text.getBytes("UTF-8"); - } catch (final UnsupportedEncodingException e) { - throw new RuntimeException("FATAL: UTF-8 encoding not supported.", - e); - } - } - - /** - * Assemble as unicode extension from the name/comment and - * encoding of the original zip entry. - * - * @param text The file name or comment. - * @param bytes The encoded of the filename or comment in the zip - * file. - */ - protected AbstractUnicodeExtraField(final String text, final byte[] bytes) { - - this(text, bytes, 0, bytes.length); - } - - private void assembleData() { - if (unicodeName == null) { - return; - } - - data = new byte[5 + unicodeName.length]; - // version 1 - data[0] = 0x01; - System.arraycopy(ZipLong.getBytes(nameCRC32), 0, data, 1, 4); - System.arraycopy(unicodeName, 0, data, 5, unicodeName.length); - } - - /** - * @return The CRC32 checksum of the filename or comment as - * encoded in the central directory of the zip file. - */ - public long getNameCRC32() { - return nameCRC32; - } - - /** - * @param nameCRC32 The CRC32 checksum of the filename as encoded - * in the central directory of the zip file to set. - */ - public void setNameCRC32(final long nameCRC32) { - this.nameCRC32 = nameCRC32; - data = null; - } - - /** - * @return The utf-8 encoded name. - */ - public byte[] getUnicodeName() { - byte[] b = null; - if (unicodeName != null) { - b = new byte[unicodeName.length]; - System.arraycopy(unicodeName, 0, b, 0, b.length); - } - return b; - } - - /** - * @param unicodeName The utf-8 encoded name to set. - */ - public void setUnicodeName(final byte[] unicodeName) { - if (unicodeName != null) { - this.unicodeName = new byte[unicodeName.length]; - System.arraycopy(unicodeName, 0, this.unicodeName, 0, - unicodeName.length); - } else { - this.unicodeName = null; - } - data = null; - } - - /** {@inheritDoc} */ - public byte[] getCentralDirectoryData() { - if (data == null) { - this.assembleData(); - } - byte[] b = null; - if (data != null) { - b = new byte[data.length]; - System.arraycopy(data, 0, b, 0, b.length); - } - return b; - } - - /** {@inheritDoc} */ - public ZipShort getCentralDirectoryLength() { - if (data == null) { - assembleData(); - } - return new ZipShort(data.length); - } - - /** {@inheritDoc} */ - public byte[] getLocalFileDataData() { - return getCentralDirectoryData(); - } - - /** {@inheritDoc} */ - public ZipShort getLocalFileDataLength() { - return getCentralDirectoryLength(); - } - - /** {@inheritDoc} */ - public void parseFromLocalFileData(final byte[] buffer, final int offset, final int length) - throws ZipException { - - if (length < 5) { - throw new ZipException("UniCode path extra data must have at least" - + " 5 bytes."); - } - - final int version = buffer[offset]; - - if (version != 0x01) { - throw new ZipException("Unsupported version [" + version - + "] for UniCode path extra data."); - } - - nameCRC32 = ZipLong.getValue(buffer, offset + 1); - unicodeName = new byte[length - 5]; - System.arraycopy(buffer, offset + 5, unicodeName, 0, length - 5); - data = null; - } - -} |